People stand near the entrance on the north side of Crossroads Center mall between Macy's and Target as officials investigate a reported multiple stabbing incident, Saturday, Sept. 17, 2016, in St. Cloud, Minn. Police said multiple people were injured at the St. Cloud shopping mall on Saturday evening in an attack possibly involving both shooting and stabbing. The suspect is believed to be dead, St. Cloud Police Sgt. Jason Burke told the St. Cloud Times. (Dave Schwarz/St. Cloud Times via AP)

Ahmed Adan, who is Somali, says his son came to the U.S. 15 years ago and was a college student. He told the Star Tribune he had “no suspicion” that his son might have been involved in terrorist activity.